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  • Operating mode in Windows Vista (and later)
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Stored procedures
fChangeSize (Function)
In french: fChangeTaille
Resizes an external file.
Example
Reports and Queries
// Open an external file
FileID = fOpen("C:\MyDirectories\File.txt", foReadWrite)
IF FileID <> -1 THEN
// Change the size
Res = fChangeSize(FileID, 200)
...
END
Syntax
<Result> = fChangeSize(<File identifier> , <New file size>)
<Result>: Boolean
  • True if the change of size was performed,
  • False otherwise.
<File identifier>: Integer
Identifier of the file to use, defined by fOpen or fCreate.
<New file size>: Integer
New size of the file in bytes.
  • The file is truncated if the new size is less than the initial size.
  • The file is enlarged if the new size is greater than the initial size: the content between the former size and the new size is not defined.
Remarks
Reports and Queries

Operating mode in Windows Vista (and later)

If this function does not operate properly in Windows Vista (and later), check whether the file or directory used is not in one of the system directories (Windows directory or "Program Files" directory).
Indeed, in Windows Vista (and later), with the UAC mechanism (User Account Control) enabled, you must have the administrator privileges to handle and/or modify the files or directories in the system directories (Windows directory or "Program Files" directory).
Programming tip: To handle and/or modify the files or directories without administrator privileges, you should:
  • avoid writing into the Windows directory or into the "Program Files" directory,
  • use the system directory corresponding to the application (returned by SysDir associated with the srCommonAppData constant).
Component : wd240std.dll
Minimum required version
  • Version 10
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